C18 Generator set and C18 Marine Engines Caterpillar

Aftercooler - Remove

Usage:

C18 C1J

Removal Procedure

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Table 1
Required Tools
Tool	Part Number	Part Description	Qty
A	-	Guide Bolt 3/8 - 16 by 4 inch	2

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NOTICE

Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids. Refer to Special Publication, NENG2500, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat^® products. Dispose of all fluids according to local regulations and mandates.

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NOTICE

Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life.

Drain the coolant from the cooling system into a suitable container for storage or disposal. Refer to Operation and Maintenance Manual, "Cooling System Coolant - Change".
Note: It is not necessary to drain the cooling system on sea water aftercooled applications.
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Illustration 1 g01053209
Remove bolts (5) and the plates.
Remove bolts (2) and the spacers from adapter (3).
Remove adapter (3) from air pipe (6). Remove the O-ring seals from the air pipe. Remove gasket (4) from aftercooler (1).
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Illustration 2 g01381170
Loosen hose clamps (8). Slide hose (7) onto tube assembly (9).
Remove bolts (10). Remove tube assembly (9) from the aftercooler. Remove the retainer sleeve and the O-ring seal from the tube assembly.
Loosen clamp assembly (14).
Remove bolts (17). Remove tube assembly (16) and elbow (15) from the aftercooler. Remove the retainer sleeve and the O-ring seals from the tube assembly. Remove elbow (15) from the tube assembly.
Remove two bolts (12) and install Tooling (A).
Attach a suitable lifting device to aftercooler core (11). The weight of the aftercooler core is approximately 14 kg (31 lb).
Remove remaining bolts (12). Remove three bolts (13) from the back side of the aftercooler.
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Illustration 3 g01053285
Remove bolts (24). Remove adapters (23) and O-ring seals (25).
Remove cover (21). Remove gasket (22) from the cover.
Remove aftercooler core (11) from base assembly (18). Remove Tooling (A).
Remove bolts (19). Remove the O-ring seals from the bolts.
Remove base assembly (18). Remove gasket (20) from the base assembly.